lecture 3 Heart & Great Vessels : Structure, Function, Development

Question 1

why is the left ventricle wall thicker?

Answer 1

pumps blood to the entire body

Question 2

_____ _____ receives deoxygenated blood from the body

Answer 2

right atrium

Question 3

_____ receives oxygenated blood from the lungs

Answer 3

left atrium

Question 4

______ receives deoxygenated blood from the right atrium and sends it to lungs

Answer 4

right ventricle

Question 5

_____ receives oxygenated blood from left atrium and sends it to the body

Answer 5

left ventricle

Question 6

_____ motor impulses speed up heart rate; _____ motor impulses slow it down.

Answer 6

sympathetic ; parasympathetic

Question 7

what is the sinotrial node?

Answer 7

the pacemaker of the heart

Question 8

the great vessels of the thorax are ?

Answer 8

a logical extension of the heart

Question 9

embryonic origin of great vessels:

Answer 9

they are derivatives of the aortic arches.

Question 10

_____ passes through the diaphragm after receiving blood from the abdominal gut.

Answer 10

inferior vena cava

Question 11

inferior vena cava drains?

Answer 11

legs, gonads, and potentially the back body wall in abdomen and pelvis.

Question 12

the tube exiting the heart at its cranial end is the _____ ____.

Answer 12

ventral aorta